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Finding the Fourth Proportional to 69,409.09, 104,114.04 and 16,818.49

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Solution

The fourth proportional to 69,409.09, 104,114.04 and 16,818.49 is: 25,227.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,409.09 : 104,114.04 = 16,818.49 : x
  2. Step 2: Convert to fraction form
    69,409.09/104,114.04 = 16,818.49/x
  3. Step 3: Cross multiply
    69,409.09x = 104,114.04 × 16,818.49
  4. Step 4: Simplify right side
    69,409.09x = 1,751,040,940.60
  5. Step 5: Solve for x
    x = 1,751,040,940.60/69,409.09
  6. Step 6: Final answer
    x = 25,227.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.